Reapply "[lldb] Implement basic support for reverse-continue (#125242)" (again) (#128156)

This reverts commit
https://github.com/llvm/llvm-project/commit/87b7f63a117c340a6d9ca47959335fd7ef6c7ad2,
reapplying

https://github.com/llvm/llvm-project/commit/7e66cf74fb4e6a103f923e34700a7b6f20ac2a9b
with a small (and probably temporary)
change to generate more debug info to help with diagnosing buildbot
issues.

1 files changed, 7 insertions, 1 deletions

diff --git a/lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp b/lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
index 406e1d4..6cc0143 100644
--- a/lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
+++ b/lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
@@ -392,9 +392,15 @@ lldb_private::DynamicLoader *ProcessKDP::GetDynamicLoader() {
 
 Status ProcessKDP::WillResume() { return Status(); }
 
-Status ProcessKDP::DoResume() {
+Status ProcessKDP::DoResume(RunDirection direction) {
   Status error;
   Log *log = GetLog(KDPLog::Process);
+
+  if (direction == RunDirection::eRunReverse)
+    return Status::FromErrorStringWithFormatv(
+        "error: {0} does not support reverse execution of processes",
+        GetPluginName());
+
   // Only start the async thread if we try to do any process control
   if (!m_async_thread.IsJoinable())
     StartAsyncThread();